1·I can say in all sincerity that I knew nothing of these plans.
我可以十分坦诚地说，这些计划我一无所知。
—— 《牛津词典》
2·I helped you in all sincerity.
我是一片诚心帮助你。
3·People believed this, in all sincerity.
人们都真诚地相信这一点。
4·He spoke in all sincerity.
他极其诚恳地说。
5·In all sincerity, the book is terrific.
我想极其真诚地说一句，这本书简直太棒了。
6·I am devoted to you, Tessy, dearest, in all sincerity!
我是真心爱你的，最亲爱的苔丝，我完全是一片真心啊！
7·Second, express ourselves in all sincerity and with warmth.
第二，我们应把自己表达的尽量诚恳而热情。
8·We promise to serve you with the high quality in all sincerity!
我公司将竭诚为您提供优质服务！
9·I may say in all sincerity that you've been my most loyal friend.
我可以非常由衷地说，你一直是我最忠实的朋友。
10·I may say in all sincerity that you have been my most loyal friend.
我可以非常真诚地说，你一直是我最忠实的朋友。